Container with closing device



July 30, 1963 K. RuE'rz CONTAINER WITH CLOSING DEVICE E Filed Nov. 28.1960 INVENTOR.

K A R L R U E TZ www@ WWWRWNWWVVUW/ /ZMU ATTORNEK United States PatentGice 3,099,361 Patented July 30, 1963 3,099,361 CONTAINER WITH CLOSINGDEVICE Karl Rnetz, Bergstrasse 132, Zurich 7/ 32, Canton 'of Zurich,Switzerland Filed Nov. 28, 1960, Ser. No. 72,039 Claims priority,application Switzerland Nov. 28, 1959 4 Claims. (Cl. 21S-'73) Thepresent invention relates to a container with closing device.

According to the invention, the container has a branch surrounding apouring opening and having a torus on the free end directed radiallyoutwards, yand the closing device has a socket with a groove on itsinner side for taking the torus, as well as two annular surfaces whichare sepa-rated from each other by a depression, surround the outer sideof the socket above and below the groove, and 'lie flexibly sealing onthe inner wall of a closing cap that can be pushed over the socket.

'In lorder to secure the closing cap on the socket in such a closingdevice, the closing cap can be provided with an inwardly-directed hollowprolongation surrounded by a torus, which lies behind the lower edge orin a groove in a branch insertable into the pouring opening of thecontainer, and the lower or the upper edge of lthe socket is providedwith axiallydirected, arcuate depressions, in which lieaxially-directed, arcuate projections on :the lower edge for on 4aninner shoulder of the closing cap.

Three examples of execution of the container with closing deviceaccording to the invention are shown in the accompanying drawing, inwhich:

FIG. 1 shows the iirst example of execution in an axial section throughthe pouring branch of the container and the closing device placedthereon,

FIG. 2 a view looking down on FIG. 1 with the closing cap removed,

FIG. 3 an axial section of the second example, and

FIG. 4 an axi-al section of Athe third example of execution.

The pouring branch 1 of the container illustrated in FlGS. l and 2,consisting in the present case of a glass bottle, has a torus 2 directedoutwards and surrounding the pouring vopening of the branch 1 at its-free end.

The closing device consists of a socket 3 of elastically mouldablematerial, for instance soft plastics, with a groove 4 on its inner sidefor taking Ithe torus 2` on the branch 1, which are constructed iittingtight on each other.

Above and below the torus, the socket 3 has on its outer side annularsurfaces 5, surrounding t-he socket and separated from each other yby adepression `ti. Onto these annular -surfaces 5 a closing cap 7 ispushed, which consists of a material harder than the socket 3, forinstance hard plastics, Bakelite or metal. The inner wall rests sealingon the annular surfaces 5, whereby lthe socket 3 is pressed with itsgroove 4 resiliently onto the torus 2 and at the same time lalso theannular surfaces 5 onto the inner wall of the closing cap 7.

Running parallel to itself, the socket 3 carries a wall 8 by means ofwhich it rests sealing on the inner wall of the po-uring branch 1 of thecontainer, and a collar 9 directed upwards which 'with the lateralopening 10 forms a pouring outlet, thus allowing the contents of thecontainer to flow back again out `of the annular space between socketand collar 9l when the container is set upright after the pouring.

The collar 9 might be omitted, the sharpened upper edge of the socket 3being then used as pouring outlet.

According to Ithe drawing, the peripheral wall of the closing cap 7 istapered; it could, however, also be cylindrical.

The closing device, consisting of the socket 3 and closing cap, may beslipped as a wholei.e. with the closin-g cap 7 pushed onto the annularlsurfaces 5onto the branch 1 of the container, whereby the tor-us 2springs into the groove 4 and thus connects the socket 3 -to the branch1 of the container. For opening .the closure of the container, only Itheclosing cap 7 can be withdrawn from the socket 3 and/ or its annularsurfaces '5. When the cap 7 is pushed onto the annular surface-S, thecontainer is again closed tight. The elastic material of the socket 3allows resilient yielding of the wall parts of the socket with theannular surfaces 5 and causes the latter to lie sealing on the innerside of the cap 7, thus always giving tight closure.

The pouring branch 1|1 of the container illustrated in FlG. 3,consisting in the present case `of a glass bottle, has a torus 12directed outwards and surrounding the pouring opening of the branch 11at its free end.

The closing device consists of a socket 13 of elastically mouldablematerial, for instance soft plastics, with a groove 14 on its innerlside for taking the torus 12 on the branch 11, which are constructedfitte-d tight on each other.

Above and below the torus, the socket 1'3 has on its outer side annularsurfaces 15, surrounding the socket and sepa-rated from each other by adepression 16. Onto these annular surfaces 15 a closing cap 17 ispushed, which consists of a material harder than the socket 13, forinstance hard plastics, Bakel-ite or metal. The inner wall rests sealingon the annular surfaces 15, whereby the socket 13 is pressed with itsgroove 14 resiliently onto the torus 12 and at the same time also theannular surfaces l15 onto the inner :wall of the closing cap 17.

Running parallel to itself, the socket 13 carries a wall 13 by means `ofwhich it rests ysealing on the inner wall of the pouring branch 11 ofthe container, and a collar 19 that forms a pouring outlet.

The closing cap 17 carries a hollow, inwardly directed extension 2liwith a torus 21 at its lower end. This torus 21 Ilies under the lowerend of the wall 18 and thus secures the cap 17 against unintentionalloosening from the s-ocket 13.

The torus could also lie in a groove in the Wall 18, whereby theextension 20 is kept correspondingly shorter, or the torus could bearranged above the lower end of this extension 20.

For withdrawing the closing cap 17 from the socket 13-an operationrendered more difficult by this toruson the lower, radially widened edgeof the socket 18 as shown in FIG. 3 axially-directed, arcuateprojections 22 are provided, wh-ich lie in axially directed, arcuatedepressions 23 at the lower edge of the closing cap.

When the closing cap 17 is turned as is usually done when loosening a`closing cap, the lower edge of the closing cap 17 runs up between thedepressions 23 `onto the projections 22, whereby the closing cap isaxially displaced. Thus the torus 21 is brought out of engagement withthe lower edge of the extension 201 or with the groove in its Wall, sothat the closing cap 17 can easily be withdrawn from the socket 13.

In .the case of the example of execution shown in FIG. 4, in which thesame parts as in FIG. 3 are given the same reference numbers, on theinner side of the capy 17 there is a yshoulder 24, in which the axiallydirected depressions 23 are provided. '[he axially directed projections22 are then arranged at the upper edge of the socket 13.

What I claim is:

l. The combination of a container including a neck having a pouringopening with an external, annular bead extending around said pouringopening; a socket of resilient plastic material including an annularwall fitting onto said neck and having an internal anular grooveintermediate the opposite ends of said wall and receiving said bead, theportion of said annular wall below said internal groove being spacedradially from said neck below said bead, said annular wall having afrrusto-conical outer surface with upper and lower annular sealingsurface portions disposed respectively above and below said groove andwith an annular, outwardly opening recess between said sealing surfaceportions, said recess .being opposite said groove and extending `aboveand below the same; -and a closing cap removably fitting over saidsocket and including lan annular `side wall having Aa rustoconical innersurface enga-ging said Isealing surface porrtions of the socket to urgesaid wall of the latter radially inward above and below said groove forensuring sealing engagement of Athe latter with said bead,

2. The combination as in claim 1; wherein said socket has an innertubular wall fitting into said neck of the container, and said closingcap has yan inner .tubular wall extending concentrically within saidi-nner tubular wall of the socket and pressing the `last mentionedtubular wall radially `outward against `said neck; and wherein saidinner tubular wall of the cap has `an external annular bead at its lowerend engageable below the lower edge of said inner tubular wall of .thesocket for releasably retaining said cap on said socket.

3. The combination las in claim 1; wherein said annular wall of thesocket has axially directed arcuate projections adjacent an end thereof,and said side wall of the cap has corresponding axially opening arcuaterecesses adapted to receive said projections Iso that said cap isaxially displaced upwardly relative to said socket -in response toturning of said cap on said socket.

4. The combination as `in claim 3; wherein said socket has an innertubular Ivvall ttin-g into said neck of the container, and said closingcap has an inner tubular wall extending concentrically within said innertubular wall `of the socket and pressing the last mentioned tubular wallradially outward against said neck; and wherein said inner .tubular wallof the cap has an external annular bead at its lower end engageablebelow the lower edge of said inner tubular wall of the socket when saidyarcuate projections register with said arcuate recesses for releasablyretaining said cap on said socket.

References Cited i-n the le of this patent UNITED STATES PATENTS2,056,170 Deschner Oct. 6, 1936 2,443,086 Turenne .lune 8, 19482,476,155 McKelvy July 12, 1949 2,601,039 Livingstone` June 17, 195:22,978,134 Caine etal. Apr. 4, 1961 FOREIGN PATENTS 812,783 France Feb.8, 1937 510,567 Great Britain Aug. 3, 1939

1. THE COMBINATION OF A CONTAINER INCLUDING A NECK HAVING A POURINGOPENING WITH AN EXTERNAL, ANNULAR BEAD EXTENDING AROUND SAID POURINGOPENING; A SOCKET OF RESILIENT PLASTIC MATERIAL INCLUDING AN ANNULARWALL FITTING ONTO SAID NECK AND HAVING AN INTERNAL ANULAR GROOVEINTERMEDIATE THE OPPOSITE ENDS OF SAID WALL AND RECEIVING SAID BEAD, THEPORTION OF SAID ANNULAR WALL BELOW SAID INTERNAL GROOVE BEING SPACEDRADIALLY FROM SAID NECK BELOW SAID BEAD, SAID ANNULAR WALL HAVING AFRUSTO-CONICAL OUTER SURFACE WITH UPPER AND LOWER ANNULAR SEALINGSURFACE PORTIONS DISPOSED RESPECTIVELY ABOVE AND BELOW SAID GROOVE ANDWITH AN ANNULAR, OUTWARDLY OPENING RECESS BETWEEN SAID SEALING SURFACEPORTIONS, SAID RECESS BEING OPPOSITE SAID GROOVE AND EXTENDING ABOVE ANDBELOW THE SAME; AND A CLOSING CAP REMOVABLY FITTING OVER SAID SOCKET ANDINCLUDING AN ANNULAR SIDE WALL HAVING A FRUSTOCONICAL INNER SURFACEENGAGING SAID SEALING SURFACE PORTIONS OF THE SOCKET TO URGE SAID WALLOF THE LATTER RADIALLY INWARD ABOVE AND BELOW SAID GROOVE FOR ENSURINGSEALING ENGAGEMENT OF THE LATTER WITH SAID BEAD.